October 21 National Days

October 21st brings a mix of 15 national and international celebrations, from historical commemorations to fun food holidays. Below is a complete list of national days celebrated on this day, explained in detail.

American Frog Day* (Dates Change): This event is dedicated to supporting the hobbyist community and promoting the conservation of amphibians. It raises funds through educational opportunities on captive breeding, amphibian conservation, and habitat care.

Back to the Future Day: This day commemorates the date in 2015 when Marty McFly and Doc Brown time-traveled in Back to the Future Part II. Fans worldwide celebrate with events, many benefiting the Michael J. Fox Foundation for Parkinson’s Research. It’s a fun way to pay tribute to a beloved sci-fi film franchise.

Celebration of the Mind Day: This day honors the famous mathematician Martin Gardner’s birthday. Celebration of the Mind, founded by the Gathering 4 Gardner Foundation, brings people together to explore puzzles, games, math, and magic.

Count Your Buttons Day: Buttons are everywhere—from our clothes to our crafts. This light-hearted day encourages you to appreciate the variety of buttons in your life. Whether it’s counting buttons or simply admiring their shapes and colors, it’s a small but enjoyable way to celebrate something often overlooked.

Everyone Writes Day: A day dedicated to fostering a love of writing among children, this initiative encourages creative ways to get students excited about writing. From storytelling and blogging to sci-fi writing inspired by an alien landing in the playground, it’s about inspiring kids to express themselves with words.

International Day of the Nacho: This day celebrates the delicious dish invented by Ignacio “Nacho” Anaya in 1943. Nachos, made with tortillas, melted cheese, and jalapeños, are a popular snack around the world. Originating in Mexico and gaining popularity across the border, this holiday is perfect for enjoying a plate of cheesy, crunchy goodness. Not to confuse with National Nachos Day celebrated on November 6th.

National Apple Day 🇬🇧: Primarily celebrated in the UK, National Apple Day highlights the importance of apples and orchards in culture and the environment. From apple tastings to orchard visits, this day encourages people to appreciate the diversity and significance of this beloved fruit.

National Check Your Meds Day: Sponsored by the National Community Pharmacists Association, this day encourages people to bring their medications to a pharmacist for a review. It’s a reminder to ensure your prescriptions are up-to-date and appropriate for your health needs.

National Clean Your Virtual Desktop Day* (Third Monday in October): Created by the PC Museum in Canada in 2010, this day highlights the importance of keeping your virtual workspace tidy. Just like an organized desk, a clean virtual desktop can lead to better productivity and clearer thinking.

Check out the full list of national days all about cleaning and organization!

National Pets for Veterans Day: Thanks to a dog named Bear and his owner, this day raises awareness of a program that connects shelter animals with veterans. It’s a celebration of the healing power of pets, providing companionship for veterans while also giving animals a loving home.

National Pumpkin Cheesecake Day: If you love the creaminess of cheesecake and the flavors of fall, this day is perfect for indulging in a slice of pumpkin cheesecake. Celebrate by either baking your own or enjoying it at a local café.

National Reptile Awareness Day: This day is dedicated to raising awareness about reptiles and their role in the ecosystem. It encourages education on the often misunderstood and underappreciated cold-blooded creatures that are essential to maintaining ecological balance.

National Witch Hazel Day: A day to discover the benefits and uses of genuine witch hazel, a plant with medicinal properties. From skin care to health remedies, witch hazel has been cherished for centuries, and today is a reminder of its many uses.

Trafalgar Day: This day commemorates the British Royal Navy’s victory at the Battle of Trafalgar on October 21, 1805. Vice-Admiral Horatio Nelson led the forces to victory over the combined French and Spanish fleets, securing British naval dominance. Trafalgar Day is still celebrated as a tribute to this historical event.

World Iodine Deficiency Day: Also known as Global Iodine Deficiency Disorders Prevention Day, this observance raises awareness about the importance of iodine in maintaining health. Iodine is crucial for thyroid function, and this day highlights the need for global efforts to prevent iodine deficiency disorders.